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Table 1 Identified proteins of the 1:1 sample mix

From: Precise protein quantification based on peptide quantification using iTRAQ™

Protein Id

Protein name

Mascot™ score (#i, #q)

Peptide sequences

Identical set of peptides

P49663

Lysozyme C LYSC_PHAVE

797 (4, 1)

CELAAAMK (*)

IVSDGDGMNAWVAWR (*)

KIVSDGDGMNAWVAWR

NTDGSTDYGILQINSR (*)

 

P00698

Lysozyme C precursor LYSC_CHICK

655 (5, 3)

CELAAAMK (*)

FESNFNTQATNR

GTDVQAWIR

KIVSDGNGMNAWVAWR

NTDGSTDYGILQINSR (*)

 

P00722

Beta-galactosidase BGAL_ECOLI

556 (17, 17)

APLDNDIGVSEATR

DWENPGVTQLNR

GDFQFNISR

IDPNAWVER

IGLNCQLAQVAER

LNVENPK

LSGQTIEVTSEYLFR

QSGFLSQMWIGDKK

RDWENPGVTQLNR

VDEDQPFPAVPK

VNWLGLGPQENYPDR

VVQPNATAWSEAGHISAWQQWR

WSDGSYLEDQDMWR

WVGYGQDSR

YDENGNPWSAYGGDFGDTPNDR

YGLYVVDEANIETHGMVPMNR

YSQQQLMETSHR

 

P02787

Serotransferrin precursor TRFE_HUMAN

481 (19, 19)

ADRDQYELLCLDNTR

DCHLAQVPSHTVVAR

DDTVCLAK

DGAGDVAFVK

DSAHGFLK

EDPQTFYYAVAVVK

EGYYGYTGAFR

FDEFFSEGCAPGSK

HQTVPQNTGGK

KPLEK

KPVEEYANCHLAR

KSASDLTWDNLK

MYLGYEYVTAIR

NLNEKDYELLCLDGTR

NPDPWAK

SASDLTWDNLK

SDNCEDTPEAGYFAVAVVK

SVIPSDGPSVACVK

TAGWNIPMGLLYNK

 

P02769

Serum albumin precursor ALBU_BOVIN

391 (19, 10)

ATEEQLK (*)

DAIPENLPPLTADFAEDK

DDPHACYSTVFDK

DDSPDLPK (*)

DLGEEHFK

KQTALVELLK (*)

KVPQVSTPTLVEVSR (*)

LGEYGFQNALIVR (*)

LKPDPNTLCDEFK

LSQKFPK (*)

LVNELTEFAK

LVTDLTK

LVVSTQTALA

RPCFSALTPDETYVPK

SLHTLFGDELCK (*)

TCVADESHAGCEK

TVMENFVAFVDK (*)

VPQVSTPTLVEVSR (*)

YICDNQDTISSK

 

P00706

Lysozyme C-3 LYSC3_ANAPL

333 (3, 1)

CELAAAMK (*)

IVSDGDGMNAWVAWR (*)

NTDGSTDYGILEINSR

 

P49064

Serum albumin precursor ALBU_FELCA

169 (5, 0)

ATEEQLK (*)

KVPQVSTPTLVEVSR (*)

LGEYGFQNALLVR (*)

LSQKFPK (*)

VPQVSTPTLVEVSR (*)

 

P02754

Beta-lactoglobulin precursor LACB_BOVIN

169 (6, 0)

IPAVFK (*)

TKIPAVFK (*)

TPEVDDEALEK (*)

TPEVDDEALEKFDK (*)

VLVLDTDYK (*)

VLVLDTDYKK (*)

LACB_BUBBU

P49822

Serum albumin precursor ALBU_CANFA

115 (2, 0)

KQTALVELLK (*)

LGEYGFQNALLVR (*)

 

P07724

Serum albumin precursor ALBU_MOUSE

104 (1, 0)

LGEYGFQNAILVR (*)

 

P14639

Serum albumin precursor ALBU_SHEEP

96 (6, 1)

DDSPDLPK (*)

IVTDLTK

KQTALVELLK (*)

LSQKFPK (*)

SLHTLFGDELCK (*)

TVMENFVAFVDK (*)

 

P00711

Alpha-lactalbumin precursor LALBA_BOVIN

88 (1, 0)

VGINYWLAHK (*)

LALBA_BOSMU

LALBA_BUBBU

LALBA_CAPHI

LALBA_SHEEP

  1. Peptides belonging to more than one protein are marked with an asterisk (*). Proteins mentioned in the right column are confirmed by an identical set of peptides. Reliable quantification can only be performed on unique peptides whose spectra contain reporter signals. (#i: number of identified peptides, #q: number of peptides for quantification)